4/6/2017 Common Examples of GM Products Common Examples of GM Products L-Tryptophan L-Tryptophan Late 1980s,Japanese company Showa Denko Tryptophan from GM bacteria was introduced KK manufactered tryptophan from GM in the US in the 1988 bacteria FDA did not require testing because Showa Production efficiency was increased Denko had sold non-GM tryptophan in the US Bacteria contained segments of DNA that altered their metabolism and increased FDA did not require that the tryptophan be labled as a GM product production of tryptophan Common Examples of GM Products Common Examples of GM Products L-Tryptophan L-Tryptophan .1989,health department was notified of Poisoning was due to dimerized tryptophan several patients seeking medical treatment Comprised less than 0.1%of the total weight for similar symptoms linked to GM tryptophan In a few weeks,a nation-wide outbreak of a ·Higly toxic disease termed eosinophilia-myalgia syndrome Showa Denko paid over 1 billion dollars to .37 people died and 1500 permanently disabled EMS victims from the product4/6/2017 14 Common Examples of GM Products L-Tryptophan • Late 1980s, Japanese company Showa Denko KK manufactered tryptophan from GM bacteria • Production efficiency was increased • Bacteria contained segments of DNA that altered their metabolism and increased production of tryptophan Common Examples of GM Products L-Tryptophan • Tryptophan from GM bacteria was introduced in the US in the 1988 • FDA did not require testing because Showa Denko had sold non-GM tryptophan in the US • FDA did not require that the tryptophan be labled as a GM product Common Examples of GM Products L-Tryptophan • 1989, health department was notified of several patients seeking medical treatment for similar symptoms linked to GM tryptophan • In a few weeks, a nation-wide outbreak of a disease termed eosinophilia-myalgia syndrome • 37 people died and 1500 permanently disabled from the product Common Examples of GM Products L-Tryptophan • Poisoning was due to dimerized tryptophan • Comprised less than 0.1% of the total weight • Higly toxic • Showa Denko paid over 1 billion dollars to EMS victims